Except that fossil fuels aren't limited to capitalist countries. Even then accounting future potential deaths to an economic system is a bit meaningless compare

Except that fossil fuels aren't limited to capitalist countries. Even then accounting future potential deaths to an economic system is a bit meaningless compared to prior concrete and repeated history. Much less there's no way we can accurately predict the death toll of something a century out -- in the 1960-70's it was "obvious" there would be billions dying of starvation. We could crack fusion power in a decade and use direct CO2 capture to reverse CO2 levels to pre-1850's level.